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PT and Oceans Review

Review for Plate Tectonics and Oceans

Word or QuestionDefinition or Answer
Boundary type that means "pull apart" Divergent
Boundary type that means "push together" Convergent
Boundary type that "slides" past each other Transform
At what type of boundary would I find a volcanic island chain, like Hawaii? Convergent- ocean/ocean
At what type of boundary would I find a volcanic ridge, like the Cascade Range, here in Oregon? Convergent- ocean/continent
At what type of boundary would I find a mountain range that grows, such as the Himalayan Mountains? Convergent- continent/continent
At which type of boundary might we see a pattern of earthquakes? Transform
At which type of boundary might we find volcanoes or a mid-ocean ridge, such as the Ring of Fire? Divergent
stress the forces that push and pull on the earth's crust
compression squeeze (push)
tension pulling
shearing 2 pieces pushed in opposite directions
strain the way a rock deforms in response to stress
brittle breaking or fracturing
ductile flowing like a thick fluid
elastic bending or deforming with stress, but will return to its original shape when the stress is released
faulting the crack along which rocks move
folding a bend in the rock layer
domes the uplifted area created by rising magma
waves energy that moves across the surface of the water
tides the rise and fall of sea level
currents the direction of flow of a body of water
How are waves formed? Due to the foces exerted by wind on the water surface
How are tides formed? Due to the interaction of gravitational forces between the Earth, Sun, and Moon.
How are Currents formed? As a result of temperature differences on the ocean surface
How do waves move? side to side
How do tides move? up and down, changing the depth of the water
How do currents move? clockwise in the N. hemisphere, counter-clockwise in the southern hemisphere
Created by: A Gausman